Three booksMaladies & remedies
The Apothecary
Every trouble the companion knows how to name — the fungi, the molds and bacteria, the viruses, and the disorders that are nobody's fault but the weather's. Search by what you can see on the plant, or leaf through by kind; each entry opens with its symptoms, the real cause, how to treat it, and how to keep it from coming back.
121 entries in the roll
Fungal
49 entries Anthracnose Colletotrichum Fungus Serious Ash dieback Hymenoscyphus fraxineus Fungus No cure Black knot Apiosporina morbosa Fungus Serious Black spot Diplocarpon rosae Fungus Serious Box blight Calonectria pseudonaviculata Fungus Serious Brown patch Rhizoctonia solani Fungus Serious Brown rot Monilinia laxa and Monilinia fructigena Fungus Serious Canker Neonectria ditissima, with Nectria and Cytospora spp. Fungus Serious Cedar-apple rust Gymnosporangium juniperi-virginianae Fungus Serious Cercospora leaf spot Cercospora beticola and relatives Fungus Serious Chestnut blight Cryphonectria parasitica Fungus No cure Clematis wilt Calophoma clematidina Fungus Serious Clubroot Plasmodiophora brassicae Fungus No cure Coral spot Nectria cinnabarina Fungus Serious Corn smut Ustilago maydis Fungus Serious Cytospora canker Cytospora and Leucostoma spp. Fungus Serious Daylily rust Puccinia hemerocallidis Fungus Disfiguring Dollar spot Clarireedia jacksonii Fungus Disfiguring Dutch elm disease Ophiostoma novo-ulmi Fungus No cure Early blight Alternaria solani Fungus Serious Fairy ring Marasmius oreades and other soil fungi Fungus Disfiguring Fusarium patch Microdochium nivale Fungus Serious Gray mold (botrytis) Botrytis cinerea Fungus Serious Gummy stem blight Stagonosporopsis cucurbitacearum Fungus Serious Hollyhock rust Puccinia malvacearum Fungus Serious Honey fungus Armillaria mellea and other Armillaria spp. Fungus No cure Leaf spot Septoria, Ramularia, Cercospora, Phyllosticta and Mycosphaerella spp. Fungus Disfiguring Needle cast Rhizosphaera kalkhoffii & Dothistroma septosporum Fungus Serious Oak leaf blister Taphrina caerulescens Fungus Disfiguring Oak wilt Bretziella fagacearum Fungus No cure Onion white rot Stromatinia cepivora Fungus No cure Peach leaf curl Taphrina deformans Fungus Serious Peony botrytis blight Botrytis paeoniae & B. cinerea Fungus Serious Powdery mildew Podosphaera, Erysiphe and Blumeria spp. Fungus Disfiguring Red thread Laetisaria fuciformis Fungus Disfiguring Rust Puccinia, Phragmidium, Melampsora and Uromyces spp. Fungus Serious Scab Venturia inaequalis and Venturia pyrina Fungus Serious Sclerotinia Sclerotinia sclerotiorum Fungus No cure Septoria leaf spot Septoria lycopersici Fungus Serious Shot-hole Wilsonomyces carpophilus Fungus Disfiguring Silver leaf Chondrostereum purpureum Fungus Serious Slime molds Fuligo septica, Physarum & Mucilago spp. Fungus Disfiguring Sooty mold Cladosporium, Capnodium and Alternaria spp. Fungus Disfiguring Southern blight Athelia rolfsii Fungus No cure Strawberry leaf scorch Diplocarpon earlianum Fungus Serious Sycamore anthracnose Apiognomonia veneta Fungus Disfiguring Tar spot Rhytisma acerinum Fungus Disfiguring Thousand cankers disease Geosmithia morbida, vectored by Pityophthorus juglandis Fungus No cure Verticillium & fusarium wilt Verticillium dahliae, V. albo-atrum and Fusarium oxysporum Fungus No cure The fungal cabinet Open the cabinet
Water molds
11 entries Basil downy mildew Peronospora belbahrii Water mold No cure Blight Phytophthora infestans Water mold No cure Damping off Pythium and Phytophthora spp., with Rhizoctonia solani and Fusarium Water mold No cure Downy mildew Peronospora, Bremia, Plasmopara and Hyaloperonospora spp. Water mold Serious Late blight Phytophthora infestans Water mold No cure Phytophthora root and foot rot Phytophthora Water mold No cure Pythium blight Pythium aphanidermatum Water mold Serious Red stele Phytophthora fragariae Water mold No cure Root & crown rot Pythium and Phytophthora spp., with Rhizoctonia solani Water mold No cure Sudden oak death Phytophthora ramorum Water mold No cure White blister Albugo candida Water mold Disfiguring The water molds cabinet Open the cabinet
Bacterial
14 entries Angular leaf spot Pseudomonas syringae pv. lachrymans Bacterium Serious Bacterial canker Pseudomonas syringae Bacterium Serious Bacterial leaf scorch Xylella fastidiosa Bacterium No cure Bacterial leaf spot Pseudomonas and Xanthomonas Bacterium Serious Bacterial soft rot Pectobacterium and Dickeya Bacterium Serious Bacterial speck Pseudomonas syringae pv. tomato Bacterium Disfiguring Bacterial wilt Erwinia tracheiphila Bacterium No cure Black rot of brassicas Xanthomonas campestris pv. campestris Bacterium Serious Blackleg Pectobacterium atrosepticum Bacterium Serious Common scab Streptomyces scabies Bacterium Disfiguring Crown gall Agrobacterium tumefaciens Bacterium Disfiguring Fire blight Erwinia amylovora Bacterium No cure Gummosis A symptom, not one organism Bacterium Serious Slime flux Mixed bacteria — Enterobacter, Klebsiella and others Bacterium Disfiguring The bacterial cabinet Open the cabinet
Viral
12 entries Cucumber mosaic virus Cucumber mosaic virus (CMV) Virus Serious Hosta virus X Hosta virus X potexvirus Virus No cure Impatiens necrotic spot virus Impatiens necrotic spot orthotospovirus Virus No cure Rose mosaic virus Prunus necrotic ringspot & Apple mosaic viruses Virus Disfiguring Rose rosette disease Rose rosette emaravirus Virus No cure Tobacco mosaic virus Tobacco mosaic virus (TMV) Virus Serious Tomato spotted wilt virus Tomato spotted wilt orthotospovirus Virus No cure Tomato yellow leaf curl virus Tomato yellow leaf curl virus Virus No cure Tulip breaking virus Tulip breaking virus (TBV) Virus No cure Virus diseases Virus No cure Ash yellows Candidatus Phytoplasma fraxini Phytoplasma No cure Aster yellows Candidatus Phytoplasma asteris Phytoplasma No cure The viral cabinet Open the cabinet
Nematodes
3 entriesDisorders
32 entries Bitter pit Disorder Disfiguring Black walnut toxicity Disorder No cure Blossom drop Disorder Serious Blossom end rot Disorder Disfiguring Bolting Disorder Disfiguring Boron deficiency Disorder Serious Catfacing Disorder Disfiguring Drought stress Disorder Serious Edema Disorder Disfiguring Fertilizer scorch Disorder Serious Frost damage Disorder Serious Fruit splitting Disorder Disfiguring Girdling roots Disorder No cure Hail damage Disorder Serious Herbicide damage Disorder Serious Hollow heart Disorder Disfiguring Insufficient chill Disorder Serious Iron chlorosis Disorder Serious Lawn urine burn Disorder Disfiguring Leggy seedlings Disorder Serious Magnesium deficiency Disorder Disfiguring Nitrogen deficiency Disorder Disfiguring Phosphorus deficiency Disorder Serious Poor pollination Disorder Serious Potassium deficiency Disorder Serious Salt damage Disorder Serious Sun scald Disorder Serious Tip burn Disorder Serious Tomato leaf roll Disorder Disfiguring Transplant shock Disorder Disfiguring Waterlogging Disorder No cure Wind scorch Disorder Disfiguring The disorders cabinet Open the cabinet